Task types are described in Chapter 35, Tasks.

In the Cluster environment, all tasks have an additional attribute Node IDs to process the task. If there is no node ID specified, the task may be processed on any Cluster node. In most cases, it will be processed on the same node where the event was triggered. If there are some nodeIDs specified, the task will be processed on the first node in the list which is connected in Cluster and ready.